Issue #3203938 by agami4: Improve url alias elements

assets/css/input-groups.css

 .input-group .form-control:focus ~ .input-group-addon {
   border-color: #29abe2;
   border-bottom: 1px solid #29abe2;
-  box-shadow: 0 2px 0 0 #29abe2;
+  -webkit-box-shadow: 0 2px 0 0 #29abe2;
+          box-shadow: 0 2px 0 0 #29abe2;
 }
 
 .input-group-addon {
@@ -10,3 +11,9 @@
   border: 1px solid #adadad;
   border-radius: 5px;
 }
+
+.input-group.input-group-expanded .input-group-addon {
+  color: #4d4d4d;
+  border-color: #adadad;
+  background: #f3f3f3;
+}

components/03-molecules/form-elements/input-groups/input-groups.scss

@@ -14,3 +14,11 @@
   border: 1px solid $input-group-addon-border-color;
   @include border-radius($input-border-radius);
 }
+
+.input-group.input-group-expanded {
+  .input-group-addon {
+    color: $default-color;
+    border-color: $gray-light-1;
+    background: $gray-lightest;
+  }
+}